From 5fd83771641d15c418f747bd343ba6738d3875f7 Mon Sep 17 00:00:00 2001 From: Cameron Katri Date: Sun, 9 May 2021 14:20:58 -0400 Subject: Import macOS userland adv_cmds-176 basic_cmds-55 bootstrap_cmds-116.100.1 developer_cmds-66 diskdev_cmds-667.40.1 doc_cmds-53.60.1 file_cmds-321.40.3 mail_cmds-35 misc_cmds-34 network_cmds-606.40.1 patch_cmds-17 remote_cmds-63 shell_cmds-216.60.1 system_cmds-880.60.2 text_cmds-106 --- file_cmds/mv/mv.c | 505 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 505 insertions(+) create mode 100644 file_cmds/mv/mv.c (limited to 'file_cmds/mv/mv.c') diff --git a/file_cmds/mv/mv.c b/file_cmds/mv/mv.c new file mode 100644 index 0000000..52a2938 --- /dev/null +++ b/file_cmds/mv/mv.c @@ -0,0 +1,505 @@ +/* + * Copyright (c) 1989, 1993, 1994 + * The Regents of the University of California. All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Ken Smith of The State University of New York at Buffalo. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#ifndef lint +__used static char const copyright[] = +"@(#) Copyright (c) 1989, 1993, 1994\n\ + The Regents of the University of California. All rights reserved.\n"; +#endif /* not lint */ + +#ifndef lint +#if 0 +static char sccsid[] = "@(#)mv.c 8.2 (Berkeley) 4/2/94"; +#endif +#endif /* not lint */ +#include +__RCSID("$FreeBSD: src/bin/mv/mv.c,v 1.39 2002/07/09 17:45:13 johan Exp $"); + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef __APPLE__ +#include +#include +#endif + +#ifdef __APPLE__ +#include +#else +#define COMPAT_MODE(a,b) (1) +#endif /* __APPLE__ */ + +#include "pathnames.h" + +int fflg, iflg, nflg, vflg; + +int copy(char *, char *); +int do_move(char *, char *); +int fastcopy(char *, char *, struct stat *); +void usage(void); + +int +main(int argc, char *argv[]) +{ + size_t baselen, len; + int rval; + char *p, *endp; + struct stat sb; +#ifdef __APPLE__ + struct stat fsb, tsb; +#endif /* __APPLE__ */ + int ch; + char path[PATH_MAX]; + + while ((ch = getopt(argc, argv, "finv")) != -1) + switch (ch) { + case 'i': + iflg = 1; + fflg = nflg = 0; + break; + case 'f': + fflg = 1; + iflg = nflg = 0; + break; + case 'n': + nflg = 1; + fflg = iflg = 0; + break; + case 'v': + vflg = 1; + break; + default: + usage(); + } + argc -= optind; + argv += optind; + + if (argc < 2) + usage(); + + /* + * If the stat on the target fails or the target isn't a directory, + * try the move. More than 2 arguments is an error in this case. + */ + if (stat(argv[argc - 1], &sb) || !S_ISDIR(sb.st_mode)) { + if (argc > 2) + usage(); + exit(do_move(argv[0], argv[1])); + } + +#ifdef __APPLE__ + if (argc == 2 && !lstat(argv[0], &fsb) && !lstat(argv[1], &tsb) && + fsb.st_ino == tsb.st_ino && fsb.st_dev == tsb.st_dev && + fsb.st_gen == tsb.st_gen) { + /* + * We appear to be trying to move a directory into itself, + * but it may be that the filesystem is case insensitive and + * we are trying to rename the directory to a case-variant. + * Ignoring trailing slashes, we look for any difference in + * the directory names. If there is a difference we do + * the rename, otherwise we fall-thru to the traditional + * error. Note the lstat calls above (rather than stat) + * permit the renaming of symlinks to case-variants. + */ + char *q; + + for (p = argv[0] + strlen(argv[0]); p != argv[0]; ) { + p--; + if (*p != '/') + break; + } + for (q = argv[1] + strlen(argv[1]); q != argv[1]; ) { + q--; + if (*q != '/') + break; + } + for ( ; ; p--, q--) { + if (*p != *q) + exit(do_move(argv[0], argv[1])); + if (*p == '/') + break; + if (p == argv[0]) { + if (q == argv[1] || *(q-1) == '/') + break; + exit(do_move(argv[0], argv[1])); + } + if (q == argv[1]) { + if (p == argv[0] || *(p-1) == '/') + break; + exit(do_move(argv[0], argv[1])); + } + } + } +#endif /* __APPLE__ */ + + /* It's a directory, move each file into it. */ + if (strlen(argv[argc - 1]) > sizeof(path) - 1) + errx(1, "%s: destination pathname too long", *argv); + (void)strcpy(path, argv[argc - 1]); + baselen = strlen(path); + endp = &path[baselen]; + if (!baselen || *(endp - 1) != '/') { + *endp++ = '/'; + ++baselen; + } + for (rval = 0; --argc; ++argv) { + /* + * Find the last component of the source pathname. It + * may have trailing slashes. + */ + p = *argv + strlen(*argv); + while (p != *argv && p[-1] == '/') + --p; + while (p != *argv && p[-1] != '/') + --p; + + if ((baselen + (len = strlen(p))) >= PATH_MAX) { + warnx("%s: destination pathname too long", *argv); + rval = 1; + } else { + memmove(endp, p, (size_t)len + 1); + if (COMPAT_MODE("bin/mv", "unix2003")) { + /* + * For Unix 2003 compatibility, check if old and new are + * same file, and produce an error * (like on Sun) that + * conformance test 66 in mv.ex expects. + */ + if (!stat(*argv, &fsb) && !stat(path, &tsb) && + fsb.st_ino == tsb.st_ino && + fsb.st_dev == tsb.st_dev && + fsb.st_gen == tsb.st_gen) { + (void)fprintf(stderr, "mv: %s and %s are identical\n", + *argv, path); + rval = 2; /* Like the Sun */ + } else { + if (do_move(*argv, path)) + rval = 1; + } + } else { + if (do_move(*argv, path)) + rval = 1; + } + } + } + exit(rval); +} + +int +do_move(char *from, char *to) +{ + struct stat sb; + int ask, ch, first; + char modep[15]; + char resp[] = {'\0', '\0'}; + + /* + * Check access. If interactive and file exists, ask user if it + * should be replaced. Otherwise if file exists but isn't writable + * make sure the user wants to clobber it. + */ + if (!fflg && !access(to, F_OK)) { + + /* prompt only if source exist */ + if (lstat(from, &sb) == -1) { + warn("%s", from); + return (1); + } + +#define YESNO "(y/n [n]) " + ask = 0; + if (nflg) { + if (vflg) + printf("%s not overwritten\n", to); + return (0); + } else if (iflg) { + (void)fprintf(stderr, "overwrite %s? %s", to, YESNO); + ask = 1; + } else if (access(to, W_OK) && !stat(to, &sb)) { + strmode(sb.st_mode, modep); + (void)fprintf(stderr, "override %s%s%s/%s for %s? %s", + modep + 1, modep[9] == ' ' ? "" : " ", + user_from_uid(sb.st_uid, 0), + group_from_gid(sb.st_gid, 0), to, YESNO); + ask = 1; + } + if (ask) { + /* Load user specified locale */ + setlocale(LC_MESSAGES, ""); + + first = ch = getchar(); + while (ch != '\n' && ch != EOF) + ch = getchar(); + + /* only care about the first character */ + resp[0] = first; + + if (rpmatch(resp) != 1) { + (void)fprintf(stderr, "not overwritten\n"); + return (0); + } + } + } + if (!rename(from, to)) { + if (vflg) + printf("%s -> %s\n", from, to); + return (0); + } + + if (errno == EXDEV) { + struct statfs sfs; + char path[PATH_MAX]; + + /* Can't mv(1) a mount point. */ + if (realpath(from, path) == NULL) { + warnx("cannot resolve %s: %s", from, path); + return (1); + } + if (!statfs(path, &sfs) && !strcmp(path, sfs.f_mntonname)) { + warnx("cannot rename a mount point"); + return (1); + } + } else { + warn("rename %s to %s", from, to); + return (1); + } + + /* + * If rename fails because we're trying to cross devices, and + * it's a regular file, do the copy internally; otherwise, use + * cp and rm. + */ + if (lstat(from, &sb)) { + warn("%s", from); + return (1); + } + return (S_ISREG(sb.st_mode) ? + fastcopy(from, to, &sb) : copy(from, to)); +} + +int +fastcopy(char *from, char *to, struct stat *sbp) +{ + struct timeval tval[2]; + static u_int blen; + static char *bp; + mode_t oldmode; + ssize_t nread; + int from_fd, to_fd; + + if ((from_fd = open(from, O_RDONLY, 0)) < 0) { + warn("%s", from); + return (1); + } + if (blen < sbp->st_blksize) { + if (bp != NULL) + free(bp); + if ((bp = malloc((size_t)sbp->st_blksize)) == NULL) { + blen = 0; + warnx("malloc failed"); + return (1); + } + blen = sbp->st_blksize; + } + while ((to_fd = + open(to, O_CREAT | O_EXCL | O_TRUNC | O_WRONLY, 0)) < 0) { + if (errno == EEXIST && unlink(to) == 0) + continue; + warn("%s", to); + (void)close(from_fd); + return (1); + } +#ifdef __APPLE__ + { + struct statfs sfs; + + /* + * Pre-allocate blocks for the destination file if it + * resides on Xsan. + */ + if (fstatfs(to_fd, &sfs) == 0 && + strcmp(sfs.f_fstypename, "acfs") == 0) { + fstore_t fst; + + fst.fst_flags = 0; + fst.fst_posmode = F_PEOFPOSMODE; + fst.fst_offset = 0; + fst.fst_length = sbp->st_size; + + (void) fcntl(to_fd, F_PREALLOCATE, &fst); + } + } +#endif /* __APPLE__ */ + while ((nread = read(from_fd, bp, (size_t)blen)) > 0) + if (write(to_fd, bp, (size_t)nread) != nread) { + warn("%s", to); + goto err; + } + if (nread < 0) { + warn("%s", from); +err: if (unlink(to)) + warn("%s: remove", to); + (void)close(from_fd); + (void)close(to_fd); + return (1); + } +#ifdef __APPLE__ + /* XATTR can fail if to_fd has mode 000 */ + if (fcopyfile(from_fd, to_fd, NULL, COPYFILE_ACL | COPYFILE_XATTR) < 0) { + warn("%s: unable to move extended attributes and ACL from %s", + to, from); + } +#endif + (void)close(from_fd); + + oldmode = sbp->st_mode & ALLPERMS; + if (fchown(to_fd, sbp->st_uid, sbp->st_gid)) { + warn("%s: set owner/group (was: %lu/%lu)", to, + (u_long)sbp->st_uid, (u_long)sbp->st_gid); + if (oldmode & (S_ISUID | S_ISGID)) { + warnx( +"%s: owner/group changed; clearing suid/sgid (mode was 0%03o)", + to, oldmode); + sbp->st_mode &= ~(S_ISUID | S_ISGID); + } + } + if (fchmod(to_fd, sbp->st_mode)) + warn("%s: set mode (was: 0%03o)", to, oldmode); + /* + * XXX + * NFS doesn't support chflags; ignore errors unless there's reason + * to believe we're losing bits. (Note, this still won't be right + * if the server supports flags and we were trying to *remove* flags + * on a file that we copied, i.e., that we didn't create.) + */ + errno = 0; + if (fchflags(to_fd, (u_int)sbp->st_flags)) + if (errno != ENOTSUP || sbp->st_flags != 0) + warn("%s: set flags (was: 0%07o)", to, sbp->st_flags); + + tval[0].tv_sec = sbp->st_atime; + tval[1].tv_sec = sbp->st_mtime; + tval[0].tv_usec = tval[1].tv_usec = 0; + if (utimes(to, tval)) + warn("%s: set times", to); + + if (close(to_fd)) { + warn("%s", to); + return (1); + } + + if (unlink(from)) { + warn("%s: remove", from); + return (1); + } + if (vflg) + printf("%s -> %s\n", from, to); + return (0); +} + +int +copy(char *from, char *to) +{ + int pid, status; + + /* posix_spawn cp from to && rm from */ + + if ((pid = fork()) == 0) { + execl(_PATH_CP, "mv", vflg ? "-PRpv" : "-PRp", "--", from, to, + (char *)NULL); + warn("%s", _PATH_CP); + _exit(1); + } + if (waitpid(pid, &status, 0) == -1) { + warn("%s: waitpid", _PATH_CP); + return (1); + } + if (!WIFEXITED(status)) { + warnx("%s: did not terminate normally", _PATH_CP); + return (1); + } + if (WEXITSTATUS(status)) { + warnx("%s: terminated with %d (non-zero) status", + _PATH_CP, WEXITSTATUS(status)); + return (1); + } + if (!(pid = vfork())) { + execl(_PATH_RM, "mv", "-rf", "--", from, (char *)NULL); + warn("%s", _PATH_RM); + _exit(1); + } + if (waitpid(pid, &status, 0) == -1) { + warn("%s: waitpid", _PATH_RM); + return (1); + } + if (!WIFEXITED(status)) { + warnx("%s: did not terminate normally", _PATH_RM); + return (1); + } + if (WEXITSTATUS(status)) { + warnx("%s: terminated with %d (non-zero) status", + _PATH_RM, WEXITSTATUS(status)); + return (1); + } + return (0); +} + +void +usage(void) +{ + + (void)fprintf(stderr, "%s\n%s\n", + "usage: mv [-f | -i | -n] [-v] source target", + " mv [-f | -i | -n] [-v] source ... directory"); + exit(EX_USAGE); +} -- cgit v1.2.3-56-ge451